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Table 2 Nd isotope ratios of the Sm-doped Nd standard solutions with the Sm/Nd ratio of 0.2

From: Sm-Nd isotopic analysis of mixed standard solutions by multi-collector inductively coupled plasma mass spectrometry: evaluations on isobaric interference correction of Nd isotopic composition and external calibration of Sm/Nd ratio

  Gravimetric Sm/Nd 143Nd/ 144Nd 2σ S.E. 145Nd/ 144Nd 2σ S.E. n
100 μg/L Nd 0.2041 0.512195 0.000011 0.348415 0.000005 140
200 μg/L Nd 0.2022 0.512195 0.000022 0.348419 0.000010 20
50 μg/L Nd 0.2036 0.512208 0.000038 0.348420 0.000031 20